Mass per volume density.
Ounces per Teaspoon to Milligrams per Fluid ounce Converter — oz/tsp to mg/fl oz
Convert Ounce per Teaspoon (oz/tsp) to Milligram per Fluid ounce (mg/fl oz) using the exact conversion factor (1 ounce per teaspoon = 170,097.1388 milligram per fluid ounce). See the formula, worked examples, and conversion table.
Ounces per Teaspoon to Milligrams per Fluid ounce converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 5751.668511 / 0.0338140227.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Teaspoon to Milligrams per Fluid ounce
Ounce per Teaspoon and Milligram per Fluid ounce both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
milligrams per fluid ounce = ounces per teaspoon × 170097.13875
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per teaspoon equals 5751.66851121 base units, and 1 milligram per fluid ounce equals 0.0338140227018 base units, so dividing one by the other gives the direct ounce per teaspoon-to-milligram per fluid ounce factor of 170097.13875.
Simple example
1 oz/tsp × 170097.1388 = 170,097.1388 mg/fl oz
1 ounce per teaspoon = 170,097.1388 milligrams per fluid ounce.
Real-world example
1,000 oz/tsp × 170097.1388 = 170,097,138.8 mg/fl oz
1,000 ounces per teaspoon = 170,097,138.8 milligrams per fluid ounce.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Milligram per Fluid ounce (mg/fl oz) |
|---|---|
| 0.1 oz/tsp | 17,009.71388 mg/fl oz |
| 1 oz/tsp | 170,097.1388 mg/fl oz |
| 10 oz/tsp | 1,700,971.388 mg/fl oz |
| 100 oz/tsp | 17,009,713.88 mg/fl oz |
| 1,000 oz/tsp | 170,097,138.8 mg/fl oz |
| 10,000 oz/tsp | 1,700,971,388 mg/fl oz |
Reverse conversion: Milligram per Fluid ounce to Ounce per Teaspoon
1 mg/fl oz × 0.000005878993658 = 0.000005879 oz/tsp
1 milligram per fluid ounce = 0.000005879 ounces per teaspoon.
ounces per teaspoon = milligrams per fluid ounce × 0.00000587899365826
For a page dedicated to this direction, see Milligram per Fluid ounce to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/tsp)
Mass per volume density.
Understanding the Milligram per Fluid ounce (mg/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per fluid ounce are in 1 ounce per teaspoon?
1 ounce per teaspoon equals 170,097.1388 milligrams per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to milligram per fluid ounce?
Multiply the ounce per teaspoon value by 170097.1388. The converter above does this instantly to whatever precision you set.
How do I convert milligram per fluid ounce back to ounce per teaspoon?
Use the reverse factor: 1 milligram per fluid ounce equals 0.000005879 ounces per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per teaspoon?
Ounce per Teaspoon (oz/tsp) is a unit of density.
What is a milligram per fluid ounce?
Milligram per Fluid ounce (mg/fl oz) is a unit of density.
Is the ounce per teaspoon to milligram per fluid ounce conversion exact?
Yes. Both ounce per teaspoon and milligram per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 170097.1388 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.